Hi
I have a 2017 BT50 GLX. Recently I have had intermittent starting issues where it will turn over a few times and then it starts to sound like the battery is going flat then it won't do anything. When you leave it for about 5 minutes then try it starts straight away. Ford/Mazda have changed the board for the Transmisson, thinking this maybe the issue for some reason. It has been back to them 3 times. Can anyone help with any suggestions.

Thank you in advance

 

Welcome to the forum

The first thing is to check the battery condition by way of a LOAD TEST. No matter the age, when you bought it or that you know it is not the battery unless this step is done!
Then ensure that the terminal connections at the battery are clean and secure and especially the ground at the chassis then check the condition of the positive battery at the starter.
Then you need to check connected to the OBDII diagnostic connector directly (no blue tooth) and check for active DTCs pending DTCs and the state of the monitors.
There will be something that needs more checking based on your limited information that will be found in the ECU unless the ECU itself is in state of failing or has bad input information from sensors or a connectivity to the ECU?
If the battery and connection are passed, then you need to use a digital Volt/ohm meter and see what the voltage drop is at the starter positive cable when the engine is turned over to start it.

Not sure why they replaced what you described as "the board" (you need to get the proper name for the actual part?? ) if that is what it was replaced by the service shop before they verified that to be the problem. Poor diagnostic work IMHO!

 

Hi Callisto,

Thank you for your advise, I will go through the steps you have suggested.